Elemental, a new documentary about eco-warriors Rajendra Singh, Eriel Deranger and Jay Harman premieres this week in New York City. The film offers a glimpse into the lives of three regular people on personal journeys of epic proportions to save the environment.

Water is a theme that runs through all forms of popular culture, from books to myths to Hollywood and international films, with a growing number of shorter video pieces posted online at YouTube and similar sites. Peter Gleick went to the trouble of assembling a list of movies that feature water as a theme, either in the background or a main theme. It's a great way to look at movies.

This week Prop. 37, an initiative to label GM foods, got an inspiring - and surprising - endorsement from Troy Roush, a conventional farmer featured in Food Inc. Roush grows GM corn and soybeans, but strongly believes that labels benefit the farmer as well as the consumer.

In her new movie "Last Call at the Oasis," Oscar-winning filmmaker Jessica Yu trains her lens on the world water crisis, with a particular emphasis on the United States - a nation that is little aware of its burgeoning water quality and quantity problems.

The Greenhorns sprung from the dream of making a film documenting the burgeoning movement of young farmers in order to provide hope for a culture viewed as struggling and dwindling. Now, after nearly three years of production, the film is ready to take its audience by storm.